[Q2686] How can I monitor if Sleep mode is currently active?

[GMarnier0]

When W32K mode is active, I know when my DCE sets DTR in order to command the modem to enter sleep mode, but the modem can take a few seconds in order to execute it indeed… Anyway, it can exit Sleep mode by its own for many reason. I just want to monitor that for debugging.

An I/O would be great because checking power consumption is quite tricky …

I could use my custom Open AT application, but don’t know how …
Any idea?

I’m with Fw 7.44

[lotam]

CTS pin, please refer to Appendix 3.7.4.1 Sleep on procedure.

When DTR is low and there are no more AT response, the DCE sets the application (DTE)
CTS low. (At this point, the associated serial port is in Sleep Mode state)

You may also like to enable RI pin using +WRIM so host can be waken for different events.

Hope it helps.

[GMarnier0]

Thank you lotam for pointing this, it solves half of my problem.

Same question with AT+W32K=1,0 (Ignoring DTR). Is an I/O toggling somewhere in this mode ?
(CTS stays low, I’ve checked)